The Best Progressive Slots of 2021

One of the most popular types of online slots in the world today is progressive jackpot slots. These are a variation of normal video slots with a twist. A portion of each of your bets will go towards an ever-building jackpot.

Over time, this can build into millions of pounds. This guide looks into all aspects of the progressive slots experience, showcasing the best options and online casinos to play these great casino games.

Top 10 UK casino sites for progressive slots

You will see that progressive slots are a mainstay at the majority of online casino sites in the UK. There will always be some options, but certain sites will have a more diverse offering than others. Here are the 10 best UK online casinos that allow you to play progressive jackpot slots today:

  • Slot Title
  • Pay Back
  • Key Features

  • Progressive Slots: 10+
  • Payout Ratio: 94.15%
Welcome Bonus: 100% up to £500Play NowOur score:
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  • Progressive Slots: 25+
  • Payout Ratio: 96.6%
Welcome Bonus: 100% up to £100Play NowOur score:
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  • Progressive Slots: 60+
  • Payout Ratio: 97%
Welcome Bonus: Deposit bonus up to £1,000 + 300 free spinsPlay NowOur score:
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  • Progressive Slots: 60+
  • Payout Ratio: 96.5%
Welcome Bonus: 30 No Deposit Free Spins + 100% Up to £300Play NowOur score:
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  • Progressive Slots: 30+
  • Payout Ratio: 96.3%
Welcome Bonus: 150% deposit bonus up to £150Play NowOur score:
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  • Progressive Slots: 90+
  • Payout Ratio: 97%
Welcome Bonus: Deposit bonus up to £100Play NowOur score:
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  • Progressive Slots: 75+
  • Payout Ratio: 97%
Welcome Bonus: Deposit bonus up to £100 + 120 free spinsPlay NowOur score:
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  • Progressive Slots: 100+
  • Payout Ratio: 96%
Welcome Bonus: Up to £400 in Welcome Bonus Offers + 100 SpinsPlay NowOur score:
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  • Progressive Slots: 60+
  • Payout Ratio: 95.6%
Welcome Bonus: Up To £50 Matched Bonus + 50 Free Spins on StarburstPlay NowOur score:
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What Are Progressive Slots and How Do They Work?

You will usually see a section of an online casino library that is dedicated to jackpot games or progressive slot machines. These games are similar to normal slots in a lot of ways. However, the main difference is that a portion of every qualifying bet that you place on one of the markets will contribute to an ever-growing jackpot. This jackpot will keep expanding until someone wins it and then it will reset once more.

Usually, this massive jackpot will be one at random when playing the game or when you successfully complete a bonus game. The top prizes on offer can sometimes surpass ten million pounds, so there is big money up for grabs off relatively low stakes, similar to what you would find with a traditional lottery.

In order to qualify to be in with a chance of winning the progressive jackpot, you will normally need to play at the maximum bet. Other smaller stakes may not qualify you. Sometimes, you will win the jackpot randomly when playing the game, while you may earn the jackpot if you hit certain symbol winning combinations. There are also some jackpots that are must-win by a certain date.

Oftentimes, the progressive jackpot will be shared across the entire network rather than being specific to a certain online casino. This means that everyone across the world who is playing that specific title will be contributing to the jackpot.

Are the chances of winning progressive jackpot smaller vs the standard slots?

One of the best ways to gauge the possible return from playing any casino game is by looking at the return to player (RTP) percentage for a given title. This represents how much you can expect to get returned to you when you play a certain game. For normal video slot machines, the RTPs will generally lie between 96% and 97%.

The RTPs of progressive jackpot slots will usually be lower because a portion of your bet in a lot of cases will be adding to the jackpot. However, the standard gameplay if you are not contributing to the progressive jackpot will be similar to if you were playing a standard video slot.

With the progressive jackpot, you are able to be in with a chance of transforming a small bet into a large win. However, there are big odds of winning. For example, the popular Mega Moolah progressive slot has a 50 million to one chance of being won. However, there is always a chance for players to get their hands on this jackpot, adding to the overall excitement of the playing experience.

The best online progressive slot games

There are many different progressive jackpot slots that you will come across today. These range in terms of theme, gameplay, and overall quality. Certain players will have preferences about what types of progressive jackpot slots they are playing. Here are 10 of the best progressive slots in the world today that you can get started playing almost instantly:

1. Mega Moolah

mega moolah

Perhaps the best progressive slot that you will come across will be Mega Moolah. This is a Microgaming title that pays out tens of millions of pounds each and every year. There are four different progressive jackpots that make up this title, meaning that there are a few different ways that you are able to win.

This game is known for being a millionaire-maker as the jackpot will always rest to at least a million every time that it has been won. Therefore, there is not a ton of time needed to rebuild the prize pool. You will randomly trigger the bonus game, which is good to know. The game itself has a safari theme, 25 paylines, and five reels.

Casinos that you can play Mega Moolah

2. Hall of Gods

hall of gods

This NetEnt progressive slot has been around for a number of years and there have been numerous offshoots and variants that allow for a more modern experience. The big jackpot will usually be won a couple of times each year and will normally have at least £4 million in prizes.

It has a Norse god theme and allows for an enjoyable gameplay experience. There are five reels, as well as 20 paylines. It is a fun game even when not considering the progressive jackpot. To enter the bonus game, you need to obtain three of the bonus game symbols. There are two other jackpots that also offer significant prizes if you win.

Casinos that you can play Hall of Gods

3. Jackpot Giant

Jackpot Giant is a Playtech progressive slot that has a giants and volcano theme to it. The graphics are top-quality and there are plenty of ways to win in the standard game thanks to the 50 paylines.

There are plenty of exciting features in addition to the progressive jackpot that will usually be worth over £1 million. In order to get the big win, you will need to get five wilds on the first of the paylines. This is a great title for combining enjoyable gameplay with a large jackpot.

Casinos that you can play Jackpot Giant

4. Millionaire Genie

millionaire genie

Millionaire Genie is an interesting looking game that was developed by the team at Random Logic. It is based on the popular Aladdin fairytale and contains five reels and 15 paylines.

There are great animations that lend itself to a fun gameplay experience. The standout feature is definitely the progressive jackpot. In order to win it big, you will have to get three of the genie emblems upon one of the active paylines and the genie will dictate how big of a win you will earn.

Casinos that you can play Millionaire Genie

5. Major Millions

major millions

This is one of the progressive slots that pays out a lot more often than many of the major titles, This adds to the excitement and is why it is such a popular choice among players. While the layout and design of the game are simple, there are still some fun graphics to check out.

There is a classic version of the game that has three reels, or you can play the modern five-reel option. Both of them will feed into the progressive jackpot. In order to strike the jackpot, you will need to get five wild symbols on the 15th payline.

Casinos that you can play Major Millions

6. Aztec’s Millions

aztec's millions

Aztec’s Millions is one of the best-known slots games in the world today. This RTG title will often be a part of free spins offers, allowing you to get involved for no skin in the game. As the name suggests, there are millions up for grabs with Aztec’s Millions.

There are 25 paylines and the minimum required bet for the progressive jackpot is significant. However, there are a lot of significant payouts you can achieve if you play your cards the right way. With an Aztec theme, the main focus is getting five of the Aztec Millions symbols on any of the same payline.

Casinos that you can play Aztec’s Millions

7. Mega Fortune

Mega Fortune is another one of the well-known progressive jackpot slots you will come across. It awarded one player more than $18 million from a bet of just $0.25, so you need that there are life-changing sums to be won.

This is an ideal option for those who are looking to get entered into the progressive jackpot offering without having to spend a large amount per spin. In order to win the main prize, you will have to get into the bonus game first by hitting at least three bonus Wheel of Luck symbols on one of the active bet lines. This will see the bonus game activated.

Casinos that you can play Mega Fortune

8. Arabian Nights

arabian nights

Arabian Nights is an original NetEnt progressive slot machine and one of the most classic styles of these games that you will come across. While the design is old school, there is still a fun playing experience on offer with the large jackpot amount.

The minimum required bet of £5 to trigger the progressive mega jackpot is a tad big, but there have been many big wins over the years playing this game. There are also free spins rounds and different exciting features that add a bit of fun to the experience.

Casinos that you can play Arabian Nights

9. Divine Fortune

divine fortune

Divine Fortune is another NetEnt progressive jackpot slot machine that has been around for a few years. It is commonly seen even in limited game libraries. The theme sees you thrust into a world full of mythical creatures. There are free spins and re-spins galore, adding to the experience. There are also two fixed amount jackpots, as well as the huge progressive jackpot. Therefore, there is plenty to like about this game.

Casinos that you can play Divine Fortune

10. Funky Fruits

funky fruits

Funky Fruits is one of the classic slot machines with a traditional fruits theme to it. The big jackpot of more than £1 million is usually now about three times each year. You will get access to the jackpot when you get eight cherry symbols or more. There is a scaled system for placing bets and getting access to the jackpot. For example, if you get £1 per round, you will get access to 10% of the progressive jackpot if you win.

Casinos that you can play Funky Fruits

Biggest progressive jackpot wins

There have been many massive progressive jackpot wins over the years. These have often surpassed ten million pounds, creating life-changing wins for the people who are so lucky. The largest-ever win of an online progressive jackpot was in 2018 when a player won almost €19m playing Mega Moolah Mega.

The rest of the top 10 were all won either by playing Mega Moolah Mega or Mega Fortune Mega. The largest win by an online player in the UK was in 2015 when a player won £13.2 million at Betway Casino when playing Mega Moolah Mega.

Progressive slots strategy and winning tips

While the odds of winning a progressive jackpot are often pretty big, there are a few ways in which you can potentially stack the odds a bit more in your favor than they already are.

First and foremost, you need to consider bankroll management. If you want to be in with a chance of winning a progressive jackpot, you need to be usually maxing out your bets for each spin. It can be easy to get sucked into overcommitting your bankroll to these types of games rather than using it in a more efficient manner.

You should plan in advance how much you are going to allocate towards progressive jackpot slots in a given period, meaning that you will not run down your bankroll without realizing it.

It is vital that you are fully aware of the rules that are in place for that given progressive jackpot slot before you start playing. This means knowing how much you need to bet each round and how you will trigger the big win. To help you along the way, choosing the progressive slots that have better RTPs will also help you to protect your bankroll as much as possible over time.

There are many great progressive slots that have decent RTPs. While the bigger payouts will usually have the lower RTPs, you can still play higher RTPs and be in with a chance of getting four and five-figure jackpot wins. The odds are usually better for these smaller jackpots.

Finally, you should always make sure that you are getting the most out of the bonus offers and loyalty programs that are in place at a given online casino. These can help give you cashback and freerolls for certain games that can boost your chances of playing more progressive slot rounds and as a result, having more chances to potentially win it big.


As you can see, there are plenty of different types of progressive slots out there today. Some of them have massive jackpots up for grabs that can change your life, while others will have smaller, but more frequent jackpots. You have plenty of great online casinos on which you can play these types of games today, with the signup process taking just a couple of minutes.


What should you look out for when choosing a progressive slot casino?

There are tons of different online casinos out there today that you can choose from. To narrow down the options, make sure that you are dealing with platforms that are licensed by a respected authority, have an easy to use platform that is stocked up with a great selection of diverse games.

Can you use bonus funds on progressive jackpots?

When you sign up for a new online casino account there will normally be a welcome bonus offer, such as a deposit bonus or free spins that you can get your hands on. The bonus funds usually need to be wagered a certain amount of times before cashing out and they can often be used through progressive jackpot slots.

How can you get free spins for progressive jackpot slots?

A lot of online casinos will have welcome offers or regular promotions that allow you to get free spins for select progressive slots. Oftentimes you get to keep the winnings, while other times you need to meet the wagering requirements first.

Can you play progressive slots on mobile?

Yes, the majority of leading online casinos will have a good mobile device offering that allows you to play progressive slots. You can also play other popular Las Vegas casino games like blackjack and roulette for real money that rely on random number generators that will have fair odds of winning.

What are the chances of winning at a progressive jackpot slot?

You will come across a wide-area of RTPs for jackpot slots. Some will have standalone progressive jackpots, while others will have multipliers. The largest jackpot will often be tough to achieve.

Andrew O'Malley

About Andrew O'Malley

Alex has been writing about the gambling industry for more than five years, covering everything from sports betting to casinos and poker. With the sector constantly evolving, he loves nothing better than staying up to date with the latest movers and shakers in the space.